/*
 * Copyright (c) 2021-2022, NVIDIA CORPORATION.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.nvidia.spark.rapids.udf.java;

import ai.rapids.cudf.NativeDepsLoader;

import java.io.IOException;

/** Loads the native dependencies for UDF examples with a native implementation */
public class NativeUDFExamplesLoader {
  private static boolean isLoaded;

  /** Loads native UDF code if necessary */
  public static synchronized void ensureLoaded() {
    if (!isLoaded) {
      try {
        NativeDepsLoader.loadNativeDeps(new String[]{"udfexamplesjni"});
        isLoaded = true;
      } catch (IOException e) {
        throw new RuntimeException(e);
      }
    }
  }
}
